Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Dynamics of Aqueous “Liquid Marbles” in Three Dimensional Biphasic Systems

Version 1 : Received: 21 February 2021 / Approved: 22 February 2021 / Online: 22 February 2021 (13:04:01 CET)

How to cite: Kushagra, A.; Dasgupta, U. Dynamics of Aqueous “Liquid Marbles” in Three Dimensional Biphasic Systems. Preprints 2021, 2021020469 (doi: 10.20944/preprints202102.0469.v1). Kushagra, A.; Dasgupta, U. Dynamics of Aqueous “Liquid Marbles” in Three Dimensional Biphasic Systems. Preprints 2021, 2021020469 (doi: 10.20944/preprints202102.0469.v1).

Abstract

Liquid marbles are defined as hydrophilic liquid droplets that are coated with hydrophobic powdered materials. Till now, the behaviour of liquid marbles has been studied for triphasic systems comprising of the constituent hydrophilic phase, the hydrophobic coating and ambient air. In this article, we report the dynamics of aqueous droplets of varying pH (i.e. acidic, neutral and basic, respectively) moving under the influence of gravity in commonly available mustard oil. We find that the said dynamics could be divided into four parts: (i) formation of hanging aqueous droplets from the top surface of oil, (ii) oblate spheroid droplets moving at constant velocity due to viscous drag, (iii) distant repulsive interactions between two droplets due to “reverse Cheerios effect” and (iv) final impact between the two droplets explained by viscoelastic sliding friction over a compliant surface. This work would be of great interest to researchers working in the domain of interfacial phenomena like oil exploration, biomedical engineering, food technology and towards the realization of droplet-based microfluidic computational platforms for “more than Moore’s” paradigm in the domain of unconventional computation.

Subject Areas

Interfacial phenomena; liquid marbles; reverse Cheerios effect

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.